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Paraershovite

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Formula:
Na
 
3
K
 
3
Fe
3+
2
Si
 
8
O
 
20
(OH)
 
4
 · 4H
 
2
O
System:Triclinic


Fe3+-analogue of ershovite.

Classification of Paraershovite

IMA status:Approved 2009
Nickel-Strunz 10th (pending) edition ID:9.DF.15

9 : SILICATES (Germanates)
D : Inosilicates
F : Inosilicates with 2-periodic multiple chains
Dana 8th edition ID:66.6.3.2

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
6 : Double-Width Unbranched Chains, W=2 with P=2 non-amphibole configuration
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Type Occurrence of Paraershovite

Type Locality:Yukspor Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Crystallography of Paraershovite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 10.1978(5) Å, b = 12.0155(6) Å, c = 5.2263(3) Å
α = 103.439(1)°, β = 96.020(1)°, γ = 91.683(1)°
Ratio:a:b:c = 0.849 : 1 : 0.435
Unit Cell Volume:V 618.46 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
11.778 (100)
4.390 (70)
4.109 (60)
3.390 (50)
3.012 (70)
2.730 (60)
2.606 (70)

Chemical Properties of Paraershovite

Formula:
Na
 
3
K
 
3
Fe
3+
2
Si
 
8
O
 
20
(OH)
 
4
 · 4H
 
2
O
Essential elements:Fe, H, K, Na, O, Si
All elements listed in formula:Fe, H, K, Na, O, Si

Relationship of Paraershovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DF.05Chesterite
(Mg,Fe)
 
17
Si
 
20
O
 
54
(OH)
 
6
9.DF.05Clinojimthompsonite
(Mg,Fe)
 
5
Si
 
6
O
 
16
(OH)
 
2
9.DF.05Jimthompsonite
(Mg,Fe)
 
5
Si
 
6
O
 
16
(OH)
 
2
9.DF.15Ershovite
Na
 
4
K
 
3
(Fe,Mn,Ti)
 
2
Si
 
8
O
 
22
(OH)
 
4
 · 4H
 
2
O
9.DF.20Tvedalite
(Ca,Mn)
 
4
Be
 
3
Si
 
6
O
 
17
(OH)
 
4
 · 3H
 
2
O
9.DF.25Bavenite
Ca
 
4
Be
 
2
Al
 
2
Si
 
9
O
 
26
(OH)
 
2
9.DF.30Bigcreekite
BaSi
 
2
O
 
5
 · 4H
 
2
O

Other Names for Paraershovite

Synonyms:
IMA2009-025
Other Languages:

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Paraershovite

Reference List:

- +
Khomyakov, P., Cámara, F., Sokolova, E., Abdu, Y., Hawthorne, F.C. (2010): Paraershovite, Na3K3Fe3+2Si8O20(OH)4·4H2O, a new mineral species from the Khibina alkaline massif, Kola Peninsula, Russia: mineral description and crystal structure. Canadian Mineralogist, 48, 279-290.

Internet Links for Paraershovite

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    • Localities for Paraershovite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		Khomyakov, P., Cámara, F., Sokolova, E., Abdu, Y., Hawthorne, F.C. (2010): Paraershovite, Na3K3Fe3+2Si8O20(OH)4·4H2O, a new mineral species from the Khibina alkaline massif, Kola Peninsula, Russia: mineral description and crystal structure. Canadian Mineralogist, 48, 279-290.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 08:05:33
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